# Backend Engineer, Music
**Company:** [Spotify](https://hotfix.jobs/companies/spotify)
**Location:** Remote
**Skills:** Java, Scala, Python, AI, Machine Learning, Data Pipelines
**Posted:** 2026-03-26
> Builds and owns backend systems for promotion delivery and optimization in Spotify's Discovery Mode, delivering scores to personalization systems at scale. Collaborates with ML and data engineers using Java, with exposure to Scala, Python, and AI.
## Job Description
## What You'll Do

- Own and evolve backend systems that deliver promotion scores to personalization systems (PZN)
- Build and maintain services that support promotion allocation and delivery at scale
- Collaborate closely with machine learning engineers and data engineers to improve signal quality and system performance
- Contribute to system design decisions that impact a critical part of Spotify’s discovery ecosystem
- Improve reliability, scalability, and observability of existing infrastructure
- Partner with cross-functional teams to ensure seamless integration with personalization workflows
- Gradually expand your scope into adjacent areas such as data pipelines or ML-adjacent systems

## Who You Are

- You have experience building backend systems using **Java** or similar languages
- You are comfortable working across systems and are interested in learning beyond pure backend (e.g., data or ML systems)
- You are driven to leverage **AI** to improve our systems, and eager to find practical ways to apply it
- You have experience working with or exposure to **Scala**, **Python**, or data/ML workflows
- You are excited to grow into a T-shaped engineer with breadth across backend, data, and ML-adjacent domains
- You care about ownership and are motivated to take responsibility for evolving critical systems
- You collaborate effectively with cross-functional teams, including personalization and data partners
**Apply:** https://hotfix.jobs/jobs/backend-engineer-music-at-spotify-07939492-44c3-45e7-a8de-6155cf5dd808
**Canonical:** https://hotfix.jobs/jobs/backend-engineer-music-at-spotify-07939492-44c3-45e7-a8de-6155cf5dd808